<template>
	<view>
    <!-- <my-search bgColor="pink" radius=3></my-search> -->
    <my-search @myeven="goToSearch"></my-search>
		<view class="scroll-view-container">
		  <!-- 左侧滑动区域 -->
      <scroll-view class="left-scroll-view" scroll-y="true" :style="{height: wh+'px'}">
        <block v-for="(item,i) in cateList" :key="i">
          <view :class="['left-scroll-item',i === active?'active':'']" @click="isActive(i)">{{item.cat_name}}</view>
        </block>
      </scroll-view>
		  <!-- 右侧滑动区域 -->
      <scroll-view class="right-scroll-view" :scroll-top="scrollTop" scroll-y="true" :style="{height: wh+'px'}">
        <block v-for="(item,i) in cateLevel2" :key="i">
          <!-- 二级分类 -->
          <view class="cate-lv2">
            <view class="cate-lv2-title">/ {{item.cat_name}} /</view>
            <!-- 三级分类 -->
            <view class="cate-lv3-list">
              <!-- item项 -->
              <view class="cate-lv3-item" v-for="(item2,i2) in item.children" :key="i2" @click="goToGoodsList(item2)">
                <image :src="item2.cat_icon.replace('dev','web')"></image>
                <text>{{item2.cat_name}}</text>
              </view>
            </view>
          </view>
        </block>
      </scroll-view>
		</view>
	</view>
</template>

<script>
  import tabbarMix from '@/mixins/tabbar-badge'
	export default {
    mixins:[tabbarMix],
		data() {
			return {
				wh:0,
        cateList:[],
        active:0,
        cateLevel2:[],
        scrollTop:0
			};
		},
    onLoad() {
      const sysInfo = uni.getSystemInfoSync()
      // console.log(sysInfo);
      this.wh = sysInfo.windowHeight - 50;
      this.getCateList();
    },
    methods:{
      async getCateList(){
        const {data:res} = await uni.$http.get('/api/public/v1/categories')
        // console.log(res);
        if(res.meta.status !== 200)return uni.$showMsg()
        this.cateList = res.message;
        this.cateLevel2 = res.message[0].children
      },
      isActive(i){
        this.active = i;
        this.cateLevel2 = this.cateList[i].children;
        this.scrollTop = this.scrollTop === 0?1:0;
      },
      goToGoodsList(item){
        uni.navigateTo({
          url:'/subpkg/goods_list/goods_list?cid='+item.cat_id
        })
      },
      goToSearch(){
       uni.navigateTo({
         url:'/subpkg/search/search'
       })
      }
    }
	}
</script>

<style lang="scss">
  .scroll-view-container{
    // color: red;
    display: flex;
    .left-scroll-view{
      width: 120px;
    }
    .left-scroll-item{
      background-color: #f7f7f7;
      line-height: 60px;
      text-align: center;
      font-size: 12px;
      &.active{
        background-color: #fff;
        position: relative;
        &::before{
          content: '';
          display: block;
          width: 3px;
          height: 30px;
          background-color: #c00000;
          position: absolute;
          top: 50%;
          left: 0;
          transform: translateY(-50%);
        }
      }
    }
  }
  .cate-lv2-title{
    font-size: 12px;
    font-weight: 800;
    text-align: center;
    padding: 15px 0;
  }
  .cate-lv3-list{
    display: flex;
    flex-wrap: wrap;
    .cate-lv3-item{
      width: 33.3%;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      margin-bottom: 10px;
      image{
        width: 60px;
        height: 60px;
      }
      text{
        font-size: 12px;
      }
    }
  }
</style>
